. A history of British birds . VOL. IV. 3 B 370 ANSERES. ANATID^. Anas strepera, Linnaeus.* THE GAD WALL. Anas strepera. The Gadwall, or Grey Duck, is, on the whole, a rarevisitor to the British Islands ; although, owing to theresemblance of the female and young to those of theMallard, it has, perhaps, been considered even more un-common than it really is. Still, the tabulated records of thefamous Ashby Decoy, in Lincolnshire, which show the com-parative numbers of six species of wild-fowl taken therebetween September 1833 and April 1868, conclusively provethat between those dates t
. A history of British birds . VOL. IV. 3 B 370 ANSERES. ANATID^. Anas strepera, Linnaeus.* THE GAD WALL. Anas strepera. The Gadwall, or Grey Duck, is, on the whole, a rarevisitor to the British Islands ; although, owing to theresemblance of the female and young to those of theMallard, it has, perhaps, been considered even more un-common than it really is. Still, the tabulated records of thefamous Ashby Decoy, in Lincolnshire, which show the com-parative numbers of six species of wild-fowl taken therebetween September 1833 and April 1868, conclusively provethat between those dates the Gadwall was of very rare occur-rence in that part of the east of England; no year showingmore than three captures, and many having none at allagainst them, out of the thousands of Wild Ducks of other * Syst. Nat. Ed. 12, i. p. 200 (1766). This species has been placed by somesystematists in a separate genus, Chaulelasmus, on account of the lamellie ofthe upper mandible being more pronounced than in typical Anas ; but for thepurposes of the present work this distinction
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Keywords: ., bookauthorsaun, bookcentury1800, bookdecade1870, booksubjectbirds
